Driving mechanism for velocipedes.



No. 676,05I.

Patented lune II, I90l.

B. SINCLAIR. DRIVING MECHANISM FOR VELOGIPEDES.

(Application filed Aug. 15, 1900.) (No Model.) 2 Sheets-Sheet l.

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DRIVING MECHANISM FOR VELOCIPEDES.

(Application filed Aug. 16, 1900.) (No Model.) 2 Sheets-Sheet 2.

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UNITED STATES PATENT OFFICE.

BOYD SINCLAIR, OF VVATERLOO, ENGLAND.

DRIVING MECHANISM FOR VELOCIPEDES.

SPECIFICATION formingpart of Letters Patent N 0. 676,051, dated June 11, 1901.

Application filed August 15, 1900- Serial No. 26.973- (No model-J T0(ZZZ whom, it DUI/y concern:

Be it known that I, BOYD SINCLAIR, a subject of the Queen of England,and a resident of Waterloo, in the county of Lancaster, England, haveinvented certain new and useful Improvements in Driving Mechanism forVelocipedes, of which the following is a specification.

My invention relates to a crankhanger for bicycles and like vehicles,and is shown in the accompanying drawings, in which Figure 1 is a sideView of a bicycle-frame embodying my invention. Fig. 2 is a View alongthe crank-axle, some of the parts being in elevation and some insection.

In the drawings, a is the crank-shaft, and b the cranks fixed thereon.The crank-hanger comprises the bracket 0, carrying the bearings for thecrank-shaft. This bracket is attached to and carried by the frame-tubesd, e, andf, and it connects these tubes together, said tubes fitting insockets c, which are connected with each other by a curved bar 0 Thecentral portion of the bracket 0 at each end of the axle connects withthe sockets c and bar by means of a series of radiating arms 0 threebeing arranged on each side of the bracket, or, in other words, at eachend of the crank-shaft. The space between the arms 0 as shown in Fig. 2,is occupied by any suitable driving and clutch mechanism, such as thatshown. The arms 0 being arranged in pairs present a series of forksconnected by the part 0 Having now particularly described andascertained the nature of this invention and in what manner the same isto be performed, I declare what I claim is A crank hanger or bracketcomprising the attaching portions 0 the bars 0 radiating from each endof the axle to connect with said attaching portions, and the connectingpart 0 extending between the outer ends of the said radiating bars, thesaid bars 0 arranged in pairs presenting a series of forks connected bythe part 0 substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

BOYD SINCLAIR.

Witnesses:

JOHN H. WALKER, FRANK E. FLEETWOOD.

